mtjedock



(No Model.)

G. J. 8v; J. P. MURDOGK.

SAD IRON.

No. 856,881. lEa/entd Feb. l, 1887.

y ILA? f llnirnn drames ariane? GEORGE J. MRDOCK AND JEANNETTE l?. MURDOCK, OF NEWT YORK, N. Y.

SAD-IRON.

SPECIFICATION forming part of Letters Patent No. 356,881, dated February l, 1887.

Application filed August- G, 1856.

To @ZE whom it may concern,.-

Be it known that we, GEORGE J. Munnoeu and Jirnsunrrn P. lllnnnoou., of the city, county, and State of New York, have invented a new and useful Improvement in Sad-Irons; and the following is declared to he a specification of the same.

The object of our invention is to indicate by the automatic ringing of a bell when the iron in the process or' heating has arrived at the proper temperature for efficient and success l'ul use.

Our invention consists in the combination, with a sad-iron, oi' a gong to be operated by a trip-lever and elappcr, said lever being supported in au elevated position by a catch upon the end of a sliding rod, and said sliding rod being raised to liberate the trip-lever by the unequal expansion of a thermostat having companion plates of steel and brass or other dissimilar metals. YV'c also provide means, as hereinafter deserilied,for regulating the degrec of heat required to expand the said companion plates and sound the alarm, and also means for connecting and disconnecting the alarm and for clamping the handle to the iron.

In the drawings, Figure l is a vertical section longitudinally of the iron. Fig. 2 is a plan of the iron below the line c: as. Fig. 3 is a crosssection ofthe handle and support upon the line i; gi. Fig. Ll is a plan of the end of the handle and support. Fig. 5 is a plan of the tri p-lever and triprod, and Fig. (5 is a verti cal crossseelion at the line e a' of Fig. l.

The iron a of any desired forni or size, and the same is made with a longitudinal depression, in which the bar b is received and pivoted by the pin b in lugs :formed with the body of the iron. rljhe bar b carries the tubular standard c, upon the upper end of which the gong d is supported and secured by a nut, d, which nut is lorniod with lugs, to which are pivoted the catch e, lever-arm e, and clapper et. The sliding rod f moves freely Within the tubular standard c7 and its upper end is made with a catch, f', and through the lower end of said rod f a pin, l, passes, the said pin extending outside the standard o through slots formed in opposite sides ofthe said standard.

Then the clapper e2 is raised, the catch e engages the catch j", and the clapper is held up Serial No. 210,179. (No 1u odcl.)

in the position shown in Fig. l, ready to be dropped to give the alarm.

Theinel'al plates il, ofsteel, and/l', ofbrass, or other dissimilar inet-als, are riveted together and secured by screws 2 to one end of the bar I), the other end being forked and passing` at each side of the standard c, and there is a metal washer, i, around the standard c and between the plate 1i and pin l.

The action of the parts is as follows: The bar b is tilted upon the pivot b by moving the screw 7s so that the main port-ion of its under surface is brought either nearer to or farther from the top surface ofthe iron, according to the degree of heat it is wished that the iron should attain before the alarm is sounded. During the heating of the iron the brass plate 7i eXp-ands morethan the steel plate into which it is riveted. Consequently the free end of said plates (which is around the standard c) is raised, and with it the Washer i, rod f, and its hook f, and the hook e, thus liberated, allows the arm cand clapper c'l to l'all and sound the alarm. The Wooden knob 3 acts as a noneonduetor of heat, and will not burn the iiugers when grasped and raised to reset the alarm. W'hen the temperature of the iron is reduced, the thermostatie plaies allow the rod f to descend sur'liciently for the latch to h old the hammer when raised.

The concave shell Z and standard m serve as a support for the handle oz. vThe shell Z is shown as secured to the iron a by screws 4 5 5 but We may prefer to east the saine in one with the iron.

The handle a we prefer to make of Wood, with a metal end, af, which end is formed with a central dat bar, 6, of sectional shape, (shown in Fig. 3,) and With a collar at and round outer cud, S. The outer end, 8, is curved convexly' on its in ner surface on op posi te sides, 9 l0, and there is a convex surface to the standard at l1.

The standard vmy is slotted at the side slightly Wider than the narroivest width of the bar 6, and it is bored out of a diameter equal to the greatest width of the bar 6, so that the handle can be removed after a quarteiturn has been imparted to it, and said handle is clamped when in place by the clamping action of the convex surfaces 9 and 1l, drawing the shoul- IOO der 7 tightly against the standard when the handle is partially rotated.

We Claim as our invention-- 1. The combination, with the iron a, of the 5 pivoted bar and screw 7c, the plates h h', standard c, gong d, sliding rod f, pin l, and catch f', the catch e, arm e', and clapper e2, substantially as specified.

2. The combination, with the sad-iron a, of [o a pivoted bar capable of adjustment in relation to the iron, plates of dissimilar metal. riveted together and connected to said bar, a gong and olapper, and means, substantially as specified, for connecting the plates and clap- [5 per, whereby the unequal expansion of the plates will operate the olapper and sound the alarm, substantially as specified.

3. The combination, with the iron a., shell Z, and standard m, having a convex portion, 1l, :o of the handle n and ond n', having a bar, 6,

shoulder 7, end 8, and convex portions 9 and 101, substantially as specified.

4. The combination, with the iron ct, shell Z, standard in., handle a, and end n', of the bar b, plates h h', standard c, gong d, rod f, catches 25 j" e, arm e', elapper e2, and adjusting-screw k, substantially as speoied.

5. The combination, with a sad-iron and its handle, of an alarm-bell, a hammer for the same, alatoh to hold the hammer, and a thermo- 3Q stat to liberate the hammer and give the alarm, substantially as specified.

Signed by us this 2d day of August, A. D. 1886.

GEO. J. MURDOCK. JEANNETTE P. MURDOCK.

Witnesses:

FRED. J. BEALE, W'M. B. KRUG. 

